CN217018719U - Be applicable to water pump band pulley drilling adds clamping apparatus - Google Patents
Be applicable to water pump band pulley drilling adds clamping apparatus Download PDFInfo
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- CN217018719U CN217018719U CN202220120999.3U CN202220120999U CN217018719U CN 217018719 U CN217018719 U CN 217018719U CN 202220120999 U CN202220120999 U CN 202220120999U CN 217018719 U CN217018719 U CN 217018719U
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- water pump
- belt wheel
- positioning
- cover plate
- hole
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Abstract
The utility model relates to the technical field of machinery. A drilling machining clamp suitable for a water pump belt wheel is characterized by comprising a base, a cover plate, a drill plate, a positioning mandrel and a circumferential limiting plate, wherein a central hole is formed in the center of the water pump belt wheel, and an extending part which is circumferentially arranged and extends outwards is arranged at the top of the water pump belt wheel; the base is detachably connected with the positioning mandrel, and the positioning mandrel is provided with a positioning shaft for penetrating through a central hole of the water pump belt wheel; the drilling template and the cover plate are arranged up and down, the drilling template is provided with a positioning pin, and the cover plate is provided with a positioning hole for inserting the positioning pin; the center of the cover plate is provided with a through hole; the cover plate is provided with a limiting rod for guiding the circumferential limiting plate to move radially, the circumferential limiting plate is provided with a waist-shaped hole in sliding connection with the limiting rod, the circumferential limiting plate is detachably connected with the cover plate through a screw, and the circumferential limiting plate is used for circumferential limiting and rotation prevention of the water pump belt wheel; the drill plate and the cover plate are provided with operation holes which are communicated up and down correspondingly, and the operation holes are used for a drill to pass through.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to a drilling machining clamp.
Background
A water pump belt wheel is often used in the mechanical field; the water pump belt wheel has various patterns, one of the patterns is shown in fig. 10 and 11, 4 through holes 26 to be formed are uniformly distributed on an extension part 27 of the water pump belt wheel, the requirement of the position degree on a central hole 28 is met, the requirement of the position degree is 0.2, the product has a complex appearance, and the processing mode of a common drilling machine is difficult to guarantee; when the processing mode is not right, the product is easy to be knocked and damaged, in order to ensure the product quality, the processing time is increased, the generation efficiency of the product is influenced, and the actual production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a drilling clamp suitable for a water pump belt wheel, and aims to solve at least one technical problem.
In order to achieve the purpose, the utility model provides a drilling machining clamp suitable for a water pump belt wheel, wherein a center hole is formed in the center of the water pump belt wheel, and an extension part which is circumferentially arranged and extends outwards is arranged at the top of the water pump belt wheel;
the base is detachably connected with the positioning mandrel, and the positioning mandrel is provided with a positioning shaft for penetrating through a central hole of a belt wheel of the water pump;
the drilling template and the cover plate are arranged up and down, a positioning pin is arranged on the drilling template, and a positioning hole for inserting the positioning pin is formed in the cover plate;
the center of the cover plate is provided with a through hole;
the cover plate is provided with a limiting rod used for guiding the circumferential limiting plate to move radially, the circumferential limiting plate is provided with a waist-shaped hole in sliding connection with the limiting rod, the circumferential limiting plate is detachably connected with the cover plate through a screw, and the circumferential limiting plate is used for circumferential limiting and rotation prevention of the water pump belt wheel;
the drill plate is provided with a sleeve extending downwards, the inner wall of the sleeve is used for inserting the positioning shaft, and the sleeve penetrates through the through hole;
the drill plate and the cover plate are provided with operation holes which are communicated up and down correspondingly, and the operation holes are used for a drill bit to pass through.
Preferably, the base is provided with a through groove which is vertically communicated, and the through groove is used for facing at least one operation hole.
Facilitating the chip removal.
Further preferably, the circumference limiting plate includes two and sets up side by side waist shape hole, and still offer between two waist shape holes that set up side by side and be used for passing the screw mounting hole of screw, the screw mounting hole is waist shape hole.
Further preferably, the circumferential limiting plate is provided with two contact surfaces for contacting the adjacent extension portions respectively.
The circumferential limit is convenient to realize.
Further preferably, the circumference limiting plate is equipped with two, and two circumference limiting plates are relative to be set up the both sides of apron, just the locating hole is equipped with two, and two locating holes are relative to be set up. And the two positioning holes are positioned in the area between the two circumferential limiting plates.
Further preferably, the circumferential limiting plate partially exceeds the outer edge of the cover plate.
Further preferably, the opposite sides of the drill plate are provided with notches, and the notches are used for exposing the heads of the screws.
Preferably, the positioning mandrel comprises a positioning shaft and a mounting disc which are arranged up and down, and the outer diameter of the mounting disc is larger than that of the positioning shaft;
the lower end of the base is provided with an insertion hole which is inserted into the positioning mandrel from bottom to top;
the jack comprises an upper part and a lower part which are arranged up and down, the upper part is inserted into the positioning shaft, and the lower part is inserted into the mounting disc;
the mounting disc with the base passes through the screw detachable connection.
Further preferably, the outer diameter of the center of the base is smaller than the outer diameter of the upper end of the base and smaller than the outer diameter of the lower end of the base. Is convenient to be fixed on the working table surface through the pressure plate.
Further preferably, a counter bore for accommodating the cover plate is formed in the top of the base.
The beneficial effects are that:
(1) and a shaft positioning mode is adopted, so that the clamping reliability is improved.
(2) The product surface, the cover plate and the drill plate are in surface contact, so that the phenomenon that the product is damaged by knocking hair is avoided.
(3) The circumferential limiting plates are adopted to clamp and limit the outer surface of the workpiece, so that the product quality is improved.
(4) Compared with the existing clamping mode, the clamping device has the advantages that the positioning precision of the product is improved, the rejection rate of the product is reduced, the product quality is improved, the production cost is reduced, and the clamping device is suitable for equipment with low automation degree.
Drawings
FIG. 1 is a general assembly drawing of the present invention after installation of a water pump pulley;
FIG. 2 is a schematic view of the base of the present invention;
FIG. 3 is a schematic view of the base of the present invention from another perspective;
FIG. 4 is a schematic structural diagram of the cover plate of the present invention;
FIG. 5 is a schematic view of the structure of the drill plate of the present invention;
FIG. 6 is a schematic structural view of a positioning mandrel of the present invention;
FIG. 7 is a schematic view of a circumferential limiting plate of the present invention;
FIG. 8 is a schematic view of a stop lever according to the present invention;
FIG. 9 is a schematic view of a dowel pin configuration of the present invention;
FIG. 10 is a schematic view of a water pump pulley embodying the present invention;
fig. 11 is a schematic structural view of a water pump pulley according to another aspect of the present invention.
Wherein: the structure comprises a base, a cover plate, a drill plate, a positioning mandrel, a circumferential limiting plate, a limiting rod, a positioning pin, a counter bore, a through groove, a threaded through hole, an M5, an upper portion, a counter bore bottom plane, a lower portion, a cover plate operation hole, a threaded through hole, an M8, a pin hole, a positioning hole, a through hole, an extension portion, a central hole, a lower end face, a curved surface, an arc-shaped surface, an operating hole, a drill plate operation hole, a drill plate positioning pin hole, a sleeve, a positioning shaft, a mounting plate, a screw mounting hole, a first waist-shaped hole, a second waist-shaped hole, a third waist-shaped hole, a screw mounting hole, a first waist-shaped hole, a second waist-shaped hole, a third waist-shaped hole, a positioning shaft and a positioning shaft, a positioning shaft and a positioning shaft, a positioning and a positioning shaft, a positioning and a positioning shaft, a positioning and a positioning shaft are both are illustrated in a positioning and a positioning shaft, and a positioning shaft, a positioning and a positioning shaft are illustrated in the like reference numeral 1 and a positioning shaft, a positioning shaft are illustrated in the like reference numeral 1 and a positioning shaft, and a positioning shaft, a positioning and a positioning shaft.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 10 and 11, a central hole 28 is formed in the center of the water pump pulley, and an extension portion 27 which is circumferentially arranged and extends outward is formed at the top of the water pump pulley. The utility model provides a drilling clamp suitable for a water pump belt wheel, which is used for machining a through hole 26 to be formed in an extension part 27.
Referring to fig. 1 to 9, a drilling jig suitable for water pump belt wheel includes base 1, apron 2, bushing plate 3, positioning mandrel 4 and circumference limiting plate 5.
Referring to fig. 2 and 3, the base 1 is of a stepped shaft structure and is made of 45 # steel. The top of the base 1 is provided with a counter bore 11 for accommodating a cover plate. The base is provided with a through groove 12, and the through groove 12 is communicated up and down. The bottom of the counter bore 11 is communicated with the counter bore at the lower part. The lower counterbore has an inside diameter less than the inside diameter of counterbore 11. The upper surface of the lower counter bore is a base front counter bore bottom plane 15.
Referring to fig. 6, the positioning core shaft 4 is a stepped shaft structure, and the fitting belongs to a wearing part and needs to be wear-resistant, so that the material is Cr12Mov die steel. The base is detachably connected with the positioning mandrel. Specifically, the positioning mandrel may include a positioning shaft 41 and a mounting plate 42 which are vertically disposed, and an outer diameter of the mounting plate 42 may be larger than an outer diameter of the positioning shaft 41. Referring to fig. 2 and 3, the lower end of the base is provided with an insertion hole into which the positioning mandrel is inserted from bottom to top; the insertion hole comprises an upper part 14 and a lower part 16 which are arranged up and down, the upper part 14 is inserted into the positioning shaft 41, and the lower part 16 is inserted into the mounting plate 42; the mounting disc passes through the screw detachable connection with the base. During installation, a positioning shaft of the positioning mandrel is plugged into the through hole of the base until an installation disc of the positioning mandrel is submerged into the base jack, and the bottom plane of the installation disc of the positioning mandrel needs to be lower than that of the base; then, an M5 screw is inserted into the two screw mounting holes 43 of the positioning core shaft, and an M5 screw is screwed into the two M5 threaded through holes 13 of the base, so that the base and the positioning core shaft are fastened together; and then the base and the positioning mandrel which are fastened together are placed on the working table of the machine tool and are fixed on the working table by a common pressing plate of the machine tool.
Referring to fig. 4, a through hole is opened in the middle of the cover plate 2. As the fitting belongs to a quick-wear part and needs to be wear-resistant, the material is Cr12Mov die steel. Four cover plate operation holes 21 are formed in the cover plate 2, and the four operation holes 21 are uniformly distributed in the end face and used for ensuring that the twist drill can penetrate through a product when the product is machined. The cover plate is provided with two positioning holes 24. The hole opening is provided with a chamfer, so that a positioning pin 7 installed on the drilling template can be conveniently inserted into the cover plate, and the fit clearance between the cover plate and the positioning pin is 0.02-0.04 mm; the cover plate is provided with two M8 threaded through holes 22. Four pin holes 23 are provided in the cover plate. Putting the outer circle of the cover plate into the counter bore of the assembled base; then, the four pins are plugged into the pin holes 23 in the cover plate, the pins and the pin holes 23 in the cover plate need interference fit, and at the moment, the base, the positioning mandrel, the cover plate and the pins are assembled. And the cover plate is provided with a limiting rod for guiding the circumferential limiting plate to move in the radial direction.
Referring to fig. 7, the circumference limiting plate 5 is provided with a waist-shaped hole in sliding connection with the limiting rod, the circumference limiting plate is detachably connected with the cover plate through a screw, and the circumference limiting plate is used for circumferential limiting and rotation prevention of the water pump belt wheel. The circumference stopper is equipped with two, and the circumference stopper is the rectangle structure. As the fitting belongs to a quick-wear part and needs to be wear-resistant, the material is Cr12Mov die steel. The circumferential limiting plate is provided with two contact surfaces which are respectively used for contacting the adjacent extension parts. The circumferential limit is convenient to realize. The contact surface is the radian matching of the arc-shaped curved surface 30 of the water pump belt wheel. The circumference limiting plate includes two waist shape holes (namely first waist shape hole 51 and second waist shape hole 52) that set up side by side, and still offers the screw mounting hole that is used for passing the screw between two waist shape holes (namely first waist shape hole 51 and second waist shape hole 52) that set up side by side, and the screw mounting hole is waist shape hole (namely third waist shape hole 53).
When two circumference limiting plates 5 are installed, one of the circumference limiting plates 5 is placed on the end face of the cover plate, the kidney-shaped groove of the circumference limiting plate needs to penetrate into the limiting rod 6 installed on the cover plate, then an M8 screw penetrates into the screw installation hole in the middle, firstly, the screw is not screwed, the other circumference limiting plate is installed in the same mode, finally, the center hole of the water pump belt wheel penetrates into the positioning shaft of the positioning core shaft from top to bottom, the lower end face 29 of the extension part of the water pump belt wheel touches the upper end face of the cover plate until the gap between the outer walls of the two circumference limiting plates and the extension part of the water pump belt wheel is adjusted, two M8 screws are screwed after the adjustment is finished, and the circumference limiting plates and the cover plate are fastened together.
Referring to fig. 5, the jig plate 3 is a stepped shaft. As the fitting belongs to a quick-wear part and needs to be wear-resistant, the material is Cr12Mov die steel. The drilling template 3 is provided with a downwardly extending sleeve 33, and the inner wall of the sleeve 33 is used for inserting a positioning shaft. The relative breach that sets up is seted up at the top of bushing plate, and the inner wall of breach and the outer wall phase-match that the water pump band pulley is located the breach below. The drilling template is provided with drilling template operation holes 31 which are communicated with the cover plate operation holes on the cover plate in an up-and-down corresponding mode, and the operation holes are used for a drill bit to penetrate through. Preferably, the size of the operation hole is consistent with that of the twist drill, the fit clearance is 0-0.015 mm, and the twist drill can conveniently pass through the fit clearance. Two positioning pin holes 32 of the drilling template 3 are arranged on the drilling template 3; and inserting the excircle of the positioning pin into the positioning pin hole 32 of the drill jig plate 3, wherein the excircle of the positioning pin and the positioning pin need to be in interference fit, the top surface of the inserted positioning pin needs to be flush with the top surface of the drill jig plate 3, and installing another positioning pin in the same way. Then, a through hole in the center of the drill plate 3 is sleeved into a positioning shaft of the positioning mandrel 4, the drill plate 3 faces downwards, and two positioning pins arranged on the drill plate 3 need to penetrate into two positioning pin holes in the cover plate 2 until the lower end face of the drill plate 3 touches the upper end face of the water pump belt wheel. The base 1, the cover plate 2, the drill plate 3, the positioning mandrel 4, the cushion block, the pin, the positioning pin and the water pump belt wheel are installed together at the step. The sleeve extends into the lower counterbore, and the surface of the sleeve is not lower than the bottom plane 15 of the counterbore on the front surface of the base.
The twist drill passes through the operation hole on the drill template 3 to process a through hole to be formed on the extension part of the water pump belt wheel, and after the twist drill passes through a product, scrap iron falls downwards from the operation hole on the cover plate 2 and finally falls into the through groove of the base 1; after a through hole 26 to be formed is machined, the twist drill is lifted, the drill plate 3 is rotated to machine another hole, and the machining steps are as above until four holes on the product are machined; then taking out the drilling template 3, finally taking out a product, replacing the product with an unprocessed product, inserting a through hole of the product into a positioning shaft of a positioning mandrel 4, clamping circular arcs on two sides of the product into the middle of two circumferential limiting plates 5 until the lower end surface of an extension part of the product touches the upper end surface of a cover plate 2, simultaneously sleeving a sleeve of the drilling template 3 into the positioning shaft of the positioning mandrel 4, and when the drilling template 3 is installed downwards, two positioning pins installed on the drilling template 3 need to penetrate into two positioning holes in the cover plate 2 until the end surface of the drilling template 3 touches the upper end surface of a water pump belt wheel; after the processing is finished, the product changing steps are as above.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.
Claims (10)
1. A drilling machining clamp suitable for a water pump belt wheel is characterized by comprising a base, a cover plate, a drill plate, a positioning mandrel and a circumferential limiting plate, wherein a central hole is formed in the center of the water pump belt wheel, and an extending part which is circumferentially arranged and extends outwards is arranged at the top of the water pump belt wheel;
the base is detachably connected with the positioning mandrel, and the positioning mandrel is provided with a positioning shaft for penetrating through a central hole of the water pump belt wheel;
the drilling template and the cover plate are arranged up and down, a positioning pin is arranged on the drilling template, and a positioning hole inserted into the positioning pin is formed in the cover plate;
a through hole is formed in the center of the cover plate;
the cover plate is provided with a limiting rod used for guiding the circumferential limiting plate to move radially, the circumferential limiting plate is provided with a waist-shaped hole in sliding connection with the limiting rod, the circumferential limiting plate is detachably connected with the cover plate through a screw, and the circumferential limiting plate is used for circumferential limiting and rotation prevention of the water pump belt wheel;
the drill jig plate is provided with a sleeve extending downwards, the inner wall of the sleeve is used for inserting the positioning shaft, and the sleeve penetrates through the through hole;
the drilling template and the cover plate are provided with operation holes which are communicated up and down correspondingly, and the operation holes are used for a drill bit to pass through.
2. The drilling clamp suitable for the water pump belt wheel according to claim 1, characterized in that: the base is provided with a through groove which is communicated up and down, and the through groove is used for facing at least one operation hole.
3. The drilling clamp suitable for the water pump belt wheel according to claim 1, characterized in that: the circumference limiting plate includes that two set up side by side waist shape hole, and still offer between two waist shape holes that set up side by side and be used for passing the screw mounting hole of screw, the screw mounting hole is waist shape hole.
4. The drilling machining clamp suitable for the water pump belt wheel according to claim 1 is characterized in that: the circumferential limiting plate is provided with two contact surfaces which are respectively used for contacting the adjacent extension parts.
5. The drilling machining clamp suitable for the water pump belt wheel according to claim 1 is characterized in that: the two circumferential limiting plates are arranged oppositely on two sides of the cover plate, the two positioning holes are arranged oppositely and are located in the area between the two circumferential limiting plates.
6. The drilling clamp suitable for the water pump belt wheel according to claim 1, characterized in that: the circumferential limiting plate partially exceeds the outer edge of the cover plate.
7. The drilling clamp suitable for the water pump belt wheel according to claim 1, characterized in that: and the opposite side of the drill plate is provided with a notch, and the notch is used for exposing the head of the screw.
8. The drilling machining clamp suitable for the water pump belt wheel according to claim 1 is characterized in that: the positioning mandrel comprises a positioning shaft and an installation disc which are arranged up and down, and the outer diameter of the installation disc is larger than that of the positioning shaft;
the lower end of the base is provided with an insertion hole which is inserted into the positioning mandrel from bottom to top;
the jack comprises an upper part and a lower part which are arranged up and down, the upper part is inserted into the positioning shaft, and the lower part is inserted into the mounting disc;
the mounting disc with the base passes through the screw and can dismantle the connection.
9. The drilling machining clamp suitable for the water pump belt wheel according to claim 1 is characterized in that: the outer diameter of the center of the base is smaller than the outer diameter of the upper end of the base and smaller than the outer diameter of the lower end of the base.
10. The drilling machining clamp suitable for the water pump belt wheel according to claim 1 is characterized in that: the top of the base is provided with a counter bore for accommodating the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220120999.3U CN217018719U (en) | 2022-01-18 | 2022-01-18 | Be applicable to water pump band pulley drilling adds clamping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220120999.3U CN217018719U (en) | 2022-01-18 | 2022-01-18 | Be applicable to water pump band pulley drilling adds clamping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217018719U true CN217018719U (en) | 2022-07-22 |
Family
ID=82450589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220120999.3U Active CN217018719U (en) | 2022-01-18 | 2022-01-18 | Be applicable to water pump band pulley drilling adds clamping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217018719U (en) |
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2022
- 2022-01-18 CN CN202220120999.3U patent/CN217018719U/en active Active
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